New York County Climate
New York County, New York
Avg Annual Temp
55.8°F
Annual Precip
49.5"
Annual Snowfall
29.8"
Extreme Heat Days
17.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About New York County Weather
An Urban Heat Island Hub
New York County averages 55.8°F annually, placing it above the national median. The dense urban environment creates a distinct microclimate warmer than its surrounding suburbs.
The Peak of New York Temperatures
At 55.8°F, Manhattan is significantly warmer than the state average of 47.4°F. It records 17 days of extreme heat, nearly double that of many other New York counties.
The Warmest in the Region
Manhattan stays one degree warmer than Nassau County on average and receives more annual precipitation at 49.5 inches. Its 17 extreme heat days lead the immediate metropolitan area.
Sweltering July and Rainy Winters
July averages a hot 77.5°F, while January stays above freezing at 33.7°F. The county receives 29.8 inches of snow, which often turns to slush quickly in the city streets.
Invest in Cooling and Rain Gear
With 17 days over 90°F, high-efficiency air conditioning is a primary necessity for city residents. Frequent precipitation of 49.5 inches makes durable waterproof footwear a daily essential.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.